Actually, Rick Scott in FL has turned things around dramatically in the polls. I think Corbett is the most endangered followed by LePage in ME.
I wouldn’t dismiss the re-election chances of Paul LePage, Maine’s TEA Party conservative governor.
The presence of an “independent” (i.e. liberal) in the race (Elliot Cutler) will siphon off a chunk of the dem vote (2nd district Congressman Mike Michaud).